Blower for boilers.



E. K.STANDISH. BLOWER POR BolLBRs APPLICATION FILED OCT. 25, 1910.

Patented Oct. 17, 1911.

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APPLIGATIQN FILED 001.25, 1910.

1,006,019, Patented 0ct.17,1911.

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5E. K. STANDISH.

BLOWER FOR BOILERS.

APPLICATION FILED 0G12@ 1910.

ufezfa E. K. STANDISH.

BLOWER FOR BOILERS.

APPLICATION FILED oGT. 25, 1910.

Patented Oct. 17, 1911.

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BLOWER FOR BOILBRS.

APPLIGATION FILED 00T. 25, 1910.

Ymama oct. 17,1911.

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NITE sTATEs PATENT oEEioE.

EDWARD STANDISH, OFiDETIR-OIT, MICHIGAN, ASSIGNOR TO DIAMOND POWERSPECIALTY COMPANY, 0F DETROIT, MICHIGAN, A COPARTNERSHIP.

BLOWER FOR BOILERS.

Specification of Letters Patent.

Patented Oct. 17, 191'1.

To all whom it may concern.'

Beitv known that I, EDWARD K. STANDISH, a citizen of the United Statesof America, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new 'and useful Improvements in Blowersfor Boilers, of which the following is a specification, reference beinghad therein to the accompanying drawings.

ln the operation of blowers lfor boilers it is necessary to provide forshielding the ccntrolling parts from the heat of the boiler so that theoperator can manipulate them without danger to himself, and it is alsonecessary that when not in use they present as little surface aspossible in contact with the heat. It is also desirable that provisionbe made for the water of condensation and for rapid and easymanipulation of the parts. y

rlhis invention relates to a blower for boilers wherein a very smallarea of the blower as a whole is exposed to ,the fire or boiler heatwhen the device is not in use, and wherein the operator is perfectlyshielded and can manipulate the device without discomfort.

The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a view in longitudinal section partiallybroken away and partially retracted, of one form of blower that embodiesfeatures of the invention; Fig. 2 is a similar view showing the parts infully retracted or in inoperative position; Fig. 3 is a view in sectionon line :zr-m of Fig. 2; Fig. 4 is a view in section on line g1-y ofFig. 2; Fig. 5 is a view partly 1n section and partly in elevation on orabout line .e-e of Fig. 2; Fig. 6 is a View in detail of the inner endof a worm barrel; Fig. 7 is a View in longitudinal section, partlybroken away and partly in elevation, showing a preferred form of barrel;Fig. 8 is a view on or about line w--w of Fig. 7; and Fig. 9 is a viewpartly in elevation and partly in transverse section taken through thebarrel operating parts shown in Fig. 7.

As herein shown, in one form of apparatus an outer cylindrical casing 1of suitable material has its inner flanged and flared end 2 which isslightly restricted, set in the wall ol' a bvilcr with an enlarged outerpart 3 extended from the-outer face of said wall. A tubular barrel 4 isjournaled at each end to rotate in -the casing and has an interior screwthread indicated at 5 of coarse pitch extending from end to end thereof.A longitudinal groove extends from end to end of the-barre1 on its outerface or it is otherwise weakened so that the thread groove cuts throughthe barrel wall for a portion of each turn. A beveled gear 6 on theouter end of the barrel meshes with a pinion 7 secured as by a pin 8 tothe inner end of a spindle 9 extending through a suitable bearing lug onthe side of the casing head 3 and carrying a hand wheel 10 forconvenient manipulation.

A tubular lining 11 is concentrically' dispcsed in the barrel 4 and isheld in place by a flared annular head 12. Bearing lugs 13 on the latterafford support for a drum shaft'14 extending transversely through asuitable lug in the casing head 3. A sleeve 15 is longitudinallyreciprocable in the lining 11 and is moved back and forth therein b v astud 16 passing through a longitudinal slot indicated at 17 in thelining 11 into engagement with the screw thread groove in the barrel 4.The stud 16 also acts as se curing means for a bracket arm 18 on theouter end of which a pulley 19 is journaled. An extension 20 of thesleeve 15 has a hollow ball and socket connection or other suitablejoint uniting it to the outer end of the sleeve 15 so as to swing atright angles thereto. A hollow arm 21 telescopes with the extension 2()and has an outer head 22 provided with steam jets 23 in line,preferably, with similar jets 24 on the extension 20. A chain 25 or likeHexible connection is secured atits outer end to the inner end of thearm 21 and passes over the pulley 19 to a drum 26 on the drum shaft 14within the casing head. If preferred a counterbalance weight 27 withsuspending chain or cord 28 maybe provided, the chain 28 running on toan outer balance drum 29 on the shaft 14. t

The casing 3 has a longitudinal groove or drain duct indicated at 30 topermit the return of water of condensation toward the inlet mouth 31 ofa nipple 32 to which a steam pipe may be connected.

At the inner end of the barrel 4 the groove of the screw thread has anextension indipreferable.

cated at 33 parallel vto the axis of the barrel into which the stud 14moves when the parts are fully extended.

The above construction is suitable for use requiring great structuralstrength, but may be replaced by the construction shown in Figs. 7 8 and9 which in some respects is In the latter construction an outer casing34 has a retaining flange 35 and an enlarged inner end'36 by which it isreadily secured in the wall of a boiler. A barrel 37 has annular ribs 38which form bearings by which it is rotatably mounted in the casing 34.An open helical cam path or screw thread 64 extends from end to end ofthe barrel with a slot 39 at its outer end substantially parallel to thebarrel axis. Marginal flanges or beads 40 on either side of the threadreinforce the 'barrel to compensate for the portion cut away by thethread. A sleeve 41 may be reciprocated in the barrel if the latter berotated, by means of a stud 42 engaging the cam path or screw groove andextending into fa longitudinal inner groove indicated at 43 in theeasing which acts not only as a guide to prevent rotation of the sleevebut also as a drain duct to carry the water of condensation toward aninlet nipple 44 at the outer end of the casing 34 which may be connectedto a steam pipe. When the stud 42 reaches the extension slot 39 itclears the slot 43 and allows the sleeve to turn with the barrel.' Atransverse shaft 45 is journaled in diametrically opposite lugs 46 onthe outer' end of the casing and engages ears 47 secured to or formed ona collar 48 in the casing head that bears against the outer end of thebarrel 37 as a thrust bearing therefor. A spur gear 50 on the shaft 45within the casing head is adapted to mesh with teeth sockets 51 formedin the annular end face of the barrel 37 to rotate the latter when theshaft is turnedv as by a hand wheel 52 or the like. A tubular extension53 is secured in the outer end of the sleeve 41 to swing at right anglesas by an open ball and socket joint indicated at 54 working on a pivotpin 55 whose ends extend through the joint walls into slots or recessesindicated at 56 on the sleeve. A anged pulley 57 on the pin 55 acts as aguide for a flexible connection 58, chain or the like, leading to a drum59. The latter is keyed to a tubular member 60 rotatable on the shaft 45and extends through a suitable stuffing box or gland 61. A hand wheel 62is keyed or otherwise secured to the projecting end of the sleeve andmay, if preferred, have a hub extension or drum 63 for taking up a chainor other iexible support to a counter balance weight. The tubularextension 53 is provided with the same telescoping arm and steam jets asin the prior construction. In operation manipulation of the hand wheelprojects the sleeve toward the boiler so that the extension pivotedthereto drops into a plane substantially parallel to the adjacent headof the boiler. By proper positioning of the steam ets in reference tothe boiler flues, the operator may, by swinging the arm through propermanipulation of the hand wheel and shafts, direct jets of steam into theboiler fines. The parts are easily retracted and when in inoperativeposition the blower presents but a small. surface to the action of theheat of the boiler. Ample provision is made for taking care of the waterof condensation and the operator is not inconvenienced by heat and isnot liable to injury from escaping steam as the casing is perfectlytight and prevents any steam escaping therefrom toward the operator.

Obviously, changes in the details of constructionL may be made withoutdeparting from the spirit of the invention and I do not care to limitmyself to any particular form or arrangement of parts.

I claim as my invention:

1. A blower for boilers "comprising a; substantially cylindrical casinghaving a closed outer end provided with a steam inlet nipple and an openinner end, a barrel rotatable in the casing provided with a screw threadwhose groove forms an opening through the shell of the barrel, a sleevelongitudinally reciprocable in the barrel provided with a lat` erallyprojecting member non-rotatably interlockingjthe sleeve and casing andengaging 'the screw thread of the barrel, a tubular extensionarticulated at its inner end to the adjacent end of the sleeve to swinginto a plane transverse to the sleeve and provided with lateral steamjets, a hollow arm in telescopic engagement withl the extension providedwith a head having a steam jet, means for retracting the arm into theextension, and means for rotating the barrel.

2. A blower for boilers comprising a substantially cylindrical outercasing having a closed outer end provided with a steam inlet Inn nippleand an open inner end portion adapted to be secured in a furnace wall, abarrel journaled in the casing and provided with an internal screwthread forming an opening through the shell of the barrel and having atits inner end an extension slot substantially parallel to the axis ofthe barrel, a sleeve longitudinally reciprocable in the barrel, a studon the sleeve engaging the screw thread of the barrel and interlockingthe s'leeveand casing from relative rotation, a tubular extensionarticulated at one end to, the end of the sleeve by a steam tightjoint,permitting the extension to swing into a plane transverse to thesleeve, a hollow arm in telescopic engagement with the extension, a headon the outer end of the arm, lateral steam jet nozzles on the head andextension, a guide pulley journaled in the sleeve near its point ofconnection with the extension, a flexible connection` secured to theinner end of the arm and passing over the pulley, a drum rotatablysecured in the outer end of the casing to which the flexible connectionis secured, means for rotating the drum, and means for rotating thebarrel.

3. A blower for boilers comprising an outer casing having a closed outerend provided with a steam inlet nipple and an open inner end portionadapted to be mounted in a furnace wall, a barrel rotatable in thecasing, a sleeve longitudinally reciprocable in the barrel, means on thesleeve locking the latter against rotation in relation to the casing and(3o-acting with the barrel to reciprocate the sleeve when the barrel isrotated, means on the outer end of the casing for rotating the barrel,extensible members articulated to the outer end of the sleeve to swingin planes transverse thereto and' and an open inlet end portion adaptedto be secured in a furnace wall, a barrel rotatable in the casingprovided with an interior screw thread that forms an opening through thewall of the barrel, a sleeve reciprocable in the barrel, a lateralprojecting member on the sleeve engaging the groove of the barrel screwthread and a longitudinal groove in the interior of the casing, theprojecting member being adapted to clear the longitudinal groove when itreaches the inner end of the screw thread, hollow telescoping extensionmembers articulated to the sleeve to swing into planes transversethereto and provided with steam jet nozzles,

means near the closed end of the casing for retracting the telescopingmembers, and means for rotating the barrel.

5. A blower for 'boilers comprising a casing having a closed outer endprovided with a steam inlet nipple and with an interior longitudinalgroove forming a drain duct to the nipple, a barrel journaled in thecasing and provided with a screw thread forming an opening through theshell of the barrel, a sleeve reciprocable in the barrel, a laterallyprojecting member on the sleeve engaging the screw thread and the casingdrain slot and clearing the latter when at one end of the barrel screwthread, hollow telescoping members articulated to one end of the sleeveto lswing in planes transverse thereto and provided with steam jetnozzles, means for retracting the telescoping members,means for rotatingthe barrel and a manually operable member for driving the retracting androtating means.

6. A blower for boilers comprising a substantially cylindrical casinghaving a closed outer end provided with a steam inlet nipple, aninterior longitudinal drain slot leading to the nipple and an openrestricted inner end, a barrel journaled in the casing and provided.with a screw thread whose groove forms an opening through the barrelshell and has a slot extension at the inner end of the barrel parallelto the barrel axis, a sleeve longitudinally reciprocable in the barrel,a stud extending from the sleeve engaging the screw thread and drainslot and clearing the latter when lying in the extension slot of thescrew thread, a tubular extension pivotally connected by a steam tightjoint to one end of the sleeve to swing in planes transverse thereto andprovided with steam jet nozzles, a hollow arm in telescopic engagementwith the extension, a head on the outer end of the arm having a steamjet nozzle, a guide pulley in the sleeve near the extension joint, ashaft extending transversely through the outer end of the casing, a drumon the shaft, a tiexible connection passing from the arm over the pulleyto t-he drum, a vgear on the shaft adapted to engage and rotate thebarrel and a hand wheel for operating the shaft.

7 A blower for boilers comprising a substantially cylindrical casinghaving a closed outer end provided with a steam inlet nipple, aninterior longitudinal drain slot leading to the nipple and an open innerend portion adapted to be secured in a furnace wall,a barrel rotatablein the casing provided with a screw thread forming'an open- 10e ingthrough the shell of the barrel and having an extension slot at itsinner end parallel to the axis of the barrel, a sleeve longitudinallyreciprocable in the barrel, a stud extending from the-sleeve through thebarrel screw thread into the casing drain slot and clearing the latterwhen in the extension slot of the thread, an open ball and socket jointat the inner end of the sleeve,

a pin passing through the walls of the socket into recesses in the Wallsof the sleeve, a tubular extension secured by the socket to the\sleeveand provided with steam jet nozzles, a hollow arm in telescopicengagement with the extension provided with a head having a steam jetnozzle, a guide pulley journaled on the socket joint pin, a flexibleretracting member passing from the arm over the pulley, means at theouter end of the casing for taking up the retracting member, and meansat the outer end of the casing for rotating the barrel.

8. A blower for boilers comprising a substantially cylindrical casinghaving a closed outer end provided with a steam inlet nipnie, aninterior longitudinal drain slot leading to the nipple and an open innerend portion adapted to be secured in a furnace wall, a barrel rotatablein the casing provided with a screw thread forminglan open-v ing throughthe shell of the barrel and having an extension slot at its inner endparallel to the axis of the barrel, a sleeve longitudinally reciprocablein the barrel, a stud extending from the sleeve through the barrel screwthread int-o the casing drain slot and clearing the latter when in theextension slot of the thread, an open ball and socket joint at the innerend of the sleeve, a pin passing through4 the walls of the socket intorecesses in the walls of the sleeve, a tubular extension secured by thesocket to the sleeve and provided with steam jet nozzles, a hollow armintelescopic engagement with the extension provided with a head having asteam jet nozzle, a guide pulley journaled on' the socket joint pin, aflexible retracting member passing from the arm over the pulley, a shaftjournaled transversely in the outer end of the casing, a tubular spindlejournaled on the shaft, a vdrum secured on the shaft within the casingto which the retracting member is secured, a hand wheeloutside thecasing secured to the tubular spindle, means on the shaft within thecasing for rotating the barrel, and means for turning the shaft.

9. blower for boilers comprising a substantially cylindrical 'casinghaving .a closed outer end provided with a steam inlet nipple, aninterior longitudinal drain'slot leading to the nipple and an open innerend portion adapted `to be secured in the furnace. wall, a barrelrotatable in the casing provided with a screw thread forming an openingthrough thel shell of the barrel and having an extension slot at itsinner end parallel to the axis of the barrel, a sleeve longitudinallyreciprocable in the barrel, a stud extending from the sleeve through thebarrel screw thread into the casing drain slot and clearing the latterwhen in the extension slot of the thread, an open ball and socket jointat the inner end of the sleeve, a pin passing through the walls of thesocket into recesses in the walls of the sleeve, a tubular extensionsecured by the socket to the sleeve and provided with steam jet noz--zles, a hollow arm in telescopic engagement with the extension providedwith a head having a steam jet nozzle, a guide pulley journaled on thesocket joint pin, a flexible retracting member passing from the arm overthe pulley, a shaft journaled vtransversely in the outer end of thecasing, a tubular spindle journaled on the shaft, a drum secured on thespindle within the casing to which the retracting member is secured, ahand wheel outside the casing secured to the tubular spindle, a drum onthe hand wheel, a counter weight, a flexible sup port for the counterweight connected to the hand wheel drum, means within the casing on theshaft for rotating the barrel, and means for rotating the shaft.-

groove forms an opening through the shellV of the barrel and terminatesat its inner end in an extension slot parallel to the barrel axis, anannular thrust bearing member against the outer end of the barrel, ashaft journaled transversely in the outer end of the casing, ears on thethrust member through which the shaft passes, a gear secured to theshaft within the casing engaging sockets in the barrel end to rotate thelatter, means for rotating the shaft, a sleeve longitudinallyreciprocable in the barrel provided with a laterally projecting member'engaging the barrel screw thread and the casing drain slot and clearingthe latter when in the screw thread extension slot, telescoping tubularmembers articulated to the sleeve to swing in planes transverse theretoand provided with steam jet nozzles, retracting means connected to thetelescoping members, and means mounted on the transverseshaft foroperating the retracting means.

l1. In a blowerfor boilers a substantially cylindrical casing having aclosed outer end with steam inlet nipple and a longitudinal drain slot,a barrel within the casing, periphterminating at the inner end of thebarrel in an extension slot parallel t0 the barrel axis, reinforcingflanges on the periphery of the barrel at the-margins of the screwthread groove, and means mounted on the outer end of the casing forrotating the barrel.

12. ln a blower for boilers a substantially cylindrical casing having aclosed outer end with steam inlet nipple and a longitudinal drain slot,a barrel within the casing, peripheral ribsy on the barrel rotatable inthe casing, the barrel having an open screwthread extending from end toend thereof and terminating at the inner end of the barrel in anextension slot parallel to the barrel axis, reinforcing flanges on theperiphery of the barrel at the margins of the screw thread groove, asleeve longitudinally reciprocable in the barrel, a stud extending fromthe sleeve through the screw thread into the casing drain slot andclearing the latter when in the extension slot of the thread, extensiblemembers pivoted to the sleeve and provided with steam jet nozzles, andmeans'on the outer end of the casing for retracting the ex- `from end toend thereof, and terminating atv the inner end of the barrel in anextension slot parallel to the barrel axis, reinforcing flanges at themargins of the screw thread roove, -an annular thrust bearing member 1nthe casing in contact with the outer end of the barrel, diametricallyopposite external lugs on the casing, a shaft rotatable in the lugs,ears on the annular thrust member through which the shaft passes, a gearon the shaft within the casing meshing with a series ofsoekets inthe'barrel end, a barrel spindle rotatable -on the shaft extendingthrough a packing gland in one of the bosses, a drum secured on saidspindle within the casing, a hand wheel secured on the. spindle outsidethe. casing, a drum on the a hand Wheel, a counter balance weight, aflexible support for the counterlbalance weight secured to the handwheel drum, a hand wheel for rotating the shaft, a sleeve recprocable inthe barrel, a stud on the sleeve extending through the barrel screwthread into th\ casing drain slot and clearing the latter when in theextension slot of the screw thread, an open ball and socket member inthe inner end of the sleeve, a pin extending through the walls of thesocket member into recesses in the sleeve'wall, a guide pulley on thepin a tubular, extension secured on the socket joint member to swing inplanes transverse to the sleeve,steam jet nozzles on the extension, atubular arm telescoping with the extension, a head on the arm end, asteam jet nozzle on the head, and a lexible retractmg member passingfrom the inner end of the arm over the guidel pulley tothe inner drum onthe tubular spindle.

In testimon whereof I aix my signature in presence o two witnesses.

EDWARD K. STANDISH.

Witnesses:

O'r'ro F. BARTHEL,

ANNA M. DoRR.

